Incinerator



1 1930- x H. KLEIN k 1,763,398

INCINERATOR Filed 001;.4, 1926 7 s Sheets-Sheet 1 Jupe '10, 1930.

H. KLEI N INGINERATOR 3 Sheets-She aft. 2

Filed Oct. 4, 1926 June 10, 1930. H. KLEIN 1,763,398

. INCINERATOR Filed Oct. 4. 1926 3 Sheets-Sheet 3 II II II II PatentedJune 10, 1930 UNITED STATES HERMAN KLEIN, F crrroaoro, r LrnoIsINCINERATOR Application filed October 4, 1926.

Serial No. 139,326.

My invention relates to incinerators and tusassociated with'the fire potA, I provide has to do more particularly with incinerators forhousehould use adaptable for burning garbage and other combustiblerefuse. My invention is also more particularly directed to the gasburning type of incinerator, an object being to. provide an improved andsimplified apparatus of the above character having certain featuresOfCOIlSlZILlCtlOD and operation also leading to improved results.

For a better understanding of my invention reference is to be had to-theaccompanying drawings, in which- Fig. 1 is a side elevation of myimproved incinerator shown partly in section;

Fig. 2 is a vertical cross section along the line 2-2 of Fig. 1 throughthe fire pot, grate and dryer;

Fig. 3 is a top plan view of Flg. 2; 0

Fig, 4: is a top plan view of the grate wlth the top cover plateremoved;

, Fig. 5 is a cross sectional view along the line 55 of Fig. 1; and

Fig. 6 is a sectional view through the cover plate adapted to fit overthe top of the burner or grate of Fig. 4:.

Referring now more in detail to the construction employed, I provide asuitable base 10 preferably circular and having the legs 11 securedthereto. The base 10 has an outer flange so that anouter casing or sheetmetal enclosure 12 may set therein. A door 13 is provided through whichaccess is had to the ash pit.

Now as to the drying and burning apparatus of the incinerator, I providea suitable fire pot A preferably frusto-conical at its upper portion 14:and having a plurality of lugs 15 by which the pot and grate aresupported, these lugs resting upon tubes or pipes 16 which extend to thebaseand having tie rods 17 eX- tending t-herethrough and passingdownwardly through thebase so as to clamp the parts in position. I Theouter casing 12 is also attached to the lugs 15 by angle pieces 18having the lower leg secured to the lug 15 by the head of the tie rod 17and having a bolt .19 passing through the casing 12 so as to be rigidlyand securely held in place.

Now as ,tothe. drying. and burning appara preferably a gas burning grateB of aninverted V-shape arrangement and tiltably supported upon itsshaft extensions 20 21 which fit up into slots 22 in the lower wall ofthe fire pot. The grate is held up in these slots by caps. 23 which aresecured to the outerv face of the fire pot by screws so that they may bereadily removed to permit dropping down and removal of the grate.

The grate B is preferably compo ed of a lower section shown more indetail in Figs. 4 and 5 in the form of a hollowed casting to which thegas is fed through the hollow shaft 21. In order to overcome certaindefects in prior incinerators I have provided certain improved featuresof construction in my present grate making it in the form of an invertedV-shape. By this arrangement the refuse when dumped into the fire potdoes not settle upon a horizontal surface but rests upon an inclinedsurface so that it will more readily slide off its support when thegrate is tilted and also requires a less angular tilting movement todump the grate. This will be apparent from an inspection of Fig. 2, foras here shown the downwardly sloping upper surface of the grate istilted or dropped downwardly into a vertical position with less angularmovement than if the grate surface were horizontal or straight across.Thus unburned refuse such as tin cans and other sub stances may bereadily dropped through with .a movement that otherwise would not clearThis is lmportant when we con- I the grate. sider that theseincinerators are frequently operated by people who are careless in'theirhandling of the apparatus.

Considering the construction of the grate more in detail, as previouslystated the lower 1 portion is in the form of a hollow cast iron memberhaving passages 242526 through whichthe gas flows from the centralpassage 27 to the outer passage 28, thereby feeding the gas to theburner openings 29. around the outer edge of the burner and also to thesmall burner openings 30-31 which direct a flame into the openings 32-33passing through. the grate. A cap or cover plate 0 forms apart; otthegrate and comprises a refuse to keep it from clogging the grate orsticking between the ribs. It willbe noted that the upper portion orapex of the grate is rounded at 37, thereby giving greater clearance forthe dumping of the refuse when the grate is tilted. That is, this givesgreater P clearance than if the grate were run up to a point. At theapex of the grate I provide a row of burner openings 38 adapted to senda flame up into a dryer positioned above, and

which will be hereinafter more particularly referred to. This gratecover also has a plurality of burner openings 39404142, in-

dicated in Fig. 3, so positioned that when the gas is turned on and alight applied to any point of the burner, the flame will automaticallycreep along the burner openings and light the burner all over. i

Referring now to the gas feeding means for the grate, as previouslystated the gas is fed through the hollow shaft 21 and is fed theretofromthe gas supply pipe 44 controlled by the valve 45. The enlarged headof the shaft 21 is adapted to pass through a clearance hole 46 in thecasing 12, which opening is covered by a split cover plate 47 adapted tobe removed when the grate is to be taken out. That'is, the split coverplate 47 istaken off before the enlarged head of the shaft 21 canbedrawn through the opening 46 of the easing.

Now as'to the tilting or dumping apparatus for the grate, this is in theform of a handle 48 pivotally attached to a shaft 49 removably pinned at'50 to the grate shaft 20. This tilting or dumping apparatus is arrangedso as to be properlyreturned to normal and thereby to centralize thegrate in the fire po-t, this be- 7 ing done for several reasons, onebeing that the grate is then maintained inproper closed relationship tothe fire pot and also the burner holes at the apex are maintainedbeneath the drying wall. i

The handlei48 is spring retracted by a spring 51 extending fromthe-handle to a lug 52 which latter lug alsoacts to limit the tilting.movement of tlie grate. To this end I provide oppositely disposed lugs53,-shown in dotted lines in Fig. 1, extending from the plate 54 onopposite sides of the shaft 49. To look the grate in its centralized ornormal position I provide a slotted lug 55 at its upper portion, theslot of which receives the lug 56 carried by the handle 48. V In theoperation of the dumping apparatus the handle 48 is grasped-and pulledoutwardly against the tension of spring 51 until the lug 56 is clear oflug 55. The handle may then be moved to the right and left, its movementbeing limited by engagement between the coacting lugs 52 and 53. Theselugs are so disposed that a sufficient tilting movement of the grate issecured to give the'upper or supporting surfaces of the ribs 36 avertical position and thereby the greatest opening in the fire pot todrop the burned refuse. After shaking or dumping the grate the handle 48is returned to its central position and the lug 56 per- 7 mitted tore-engage the slot in lug 55, there by properly positioning the grate inthe fire Considering now the drying apparatus previously referred to,this "is in the form of a chambered separating wall D verticallydisposed centrally above the grate and preferably set downin the firepot so that the garbage and refuse dumped therein will be quickly driedbefore dropping down to be consumed by the gas flames at the grate.

This dryer D is preferably in the form of a pair of similar butoppositely disposed sections 606l suitably bolted together so as to forma unitary structure. This dryer is preferably of an inverted V-shapewith the apex 62 at the top and the inclined edge walls 6364 slopingdown toward the fire pot.

This dryer is also preferably provided with i an upper pointed edge sothat the garbage and refuse striking the same will drop down along eachside and separate to come into association with the'heated oppositewalls of the dryer and alsoexposed to the heat'emanating from theopening 65 in the side walls and which heat comes from the gas flamesdirected upwardly from the center holes at the apex of the grate. I alsoprovide openings 66 along the upper edge of the dryer, these openingsslanting downwardly as indicated in Fig. 1 but permitting the heat fromthe interior of the chamber to flow outward ly to assist in drying therefuse dumped in the incinerator.

It will be noted that the fiat side walls 6061 of the dryer slopeinwardly toward the bott0m, thereby providing walls which graduallyrecede from the vertical. It will thus be seen that the refuse as itdrops down over this wall falls away from it rather than down along incontact with it. By this construction packing is also prevented andthere'- by the heat from the dryer acts more rapidly upon the refuse.'Thisjs important, as it is most desirable that wet garbagefbe dried asrapidly as possible before reaching the actual flame which does theconsuming.

This dryer, D is arranged so that it may be readily placed in the firepot and also removed therefrom, and to this end it is provided with apair of bolts 67 which drop downinto slots 68 formed in lugs 69extending inwardly from the wall ofthe fire pot A.

Thus with the dryer constructed and positioned as illustrated anddescribed, the heat from the flames along the apex of the grate readilyflows directly upwardly into the chamber of the dryer, heating the sameand also flowing on and out through the openings in the wall thereof.

Above the dryer D is a receiving chamber E formed by a cylindrical innerwall of sheet metal which sets down over the edge of the fire potresting upon the lugs 15 and then engaging the brackets 71 at the top ofthe casing. These brackets 71 are also bolted inside the outer casing 12and to the top cast ing 72 which is provided. with a suitable openingand closure 73 so that the incinerator may bereadily fed from above. Ialso provide a suitable opening at 74 to which a pipe may be attachedfor carrying away the fumes from the burning refuse.

Referring again to the receiving chamber E, it will be noted that thisis in the form of a frusto-conical inner wall 70 smaller at its upperend and gradually enlarging as it approaches the fire pot. Thus thechamber being larger at the bottom than at the top and with an outwardlyextending wall, the refuse as it is dropped into the chamber has moreroom at the bottom than at the top and does not so readily pack and isalso more accessible by the heated air flowing into this chamber throughthe openings 7 5 in the wall thereof.

From the foregoing it will be apparent that in my improved incineratorby the use of the single gas burning grate of the inverted V shape andwith its double throw, the grate may be tilted for dumping by a smallangular movement but at the same time providing a full dumping opening.At the same time the side of the grate which is being raised is soshaped and positioned that it will still maintain'that side of the firepot grate opening sufficiently closed to prevent the refuse enteringthat side to interfere with the restoration of the grate to normal. Inother words, although one side of the grate is lowered to dump thegrate, the other side or other half is maintained closed as that half ofthe grate comes up, so that the refuse will not drop down between thegrate and fire pot and prevent its restoration to normal as would occurin the ordinar flat grate. Furthermore, in the improved gas burninggrate construction the gas burning openings are protected by thelongitudinal but slanting ribs so that the garbage will not contact withand close up these flame openings. Furthermore, by the improved gasburning grate a single integral structure is provided which acts as agrate for supporting the re fuse being burned and also acts forconducting the gas to the flame openings, thereby simplifyingthestructure over prior incinerators where separate burners and grates areprovided.

What I claim as new and desire to secure by United States Letters Patentis 1. A gas burning grate comprising an inverted V-shaped hollow gratemember havdownwardly and outwardly extending wingportions, said gratehaving a central conduit and peripheral conduits communicating with thecentral conduit and having burner-orifices opening from said peripheralconduits at the base of said wing portions, the apex portion of saidgrate having rigid trunnions projecting from the apex-portion, one ofwhich trunnions serves as a mixer-tube and communicates with saidcentral conduit, said wings being equipped on their upper suriaces withribs which slope downwardly and outwardly from the apex-portion of thegrate and increase in depth from the apex to the outer edges of thewings.

In witness whereof, I hereunto subscribe my name this 18th day ofSeptember, 1926.

HERMAN KLEIN.

